diff --git a/ntcore/src/main/native/cpp/NetworkClient.cpp b/ntcore/src/main/native/cpp/NetworkClient.cpp
index 8f2f824505..f56dfb9159 100644
--- a/ntcore/src/main/native/cpp/NetworkClient.cpp
+++ b/ntcore/src/main/native/cpp/NetworkClient.cpp
@@ -285,6 +285,13 @@ void NetworkClient::WsConnected(wpi::net::WebSocket& ws, uv::Tcp& tcp,
       uv::Timer::SingleShot(
           m_loop, uv::Timer::Time{0},
           [this, reason = std::string{reason}, keepws = ws.shared_from_this()] {
+            // Check that the loop is not shutting down. keepws->GetStream()
+            // would dereference the underlying uv::Tcp which may have been
+            // destroyed after Handle::Close() released its self-reference.
+            // m_loop is safe to access as long as `this` is alive.
+            if (m_loop.IsClosing()) {
+              return;
+            }
             DoDisconnect(reason);
           });
     }